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Content-adaptive adjustment system and method

a technology of content and adjustment system, which is applied in the direction of instruments, static indicating devices, etc., can solve the problems of limited lifetime of organic materials prone to degradation, significant voltage drop (or ir drop) problem and heat loss, and low operation efficiency of oled-based display, so as to prolong the life of the oled display, reduce the problem of voltage drop, and save power consumption

Inactive Publication Date: 2009-11-12
HIMAX TECH LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention is a system and method for adjusting the display on a light-emitting display to reduce power consumption and increase lifespan. The system analyzes the data to be displayed and adjusts the pixel values and drive levels accordingly to reduce the amount of power consumed by the display. This results in a more efficient and effective display that saves power and lasts longer.

Problems solved by technology

Nevertheless, the significant drawback of the OLED is the limited lifetime of the organic materials prone to degradation compared to the LCD, for example.
The OLED-based display is operated in a current driving manner, and therefore the resistance in the circuit causes a significant voltage drop (or IR drop) problem and heat loss issue.
Accordingly, the operation efficiency, particularly the power efficiency, of the OLED-based display becomes low.

Method used

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Embodiment Construction

[0014]FIG. 1A illustrates a content-adaptive adjustment system 10 for an organic light-emitting diode (OLED) display according to one embodiment of the present invention. While the OLED display is addressed here, the content-adaptive adjustment system 10 of the present invention can be adapted to another emissive-type display that itself emits light without requiring a backlight or other light source. The content-adaptive adjustment system 10 includes an automatic current limiter (ACL) 12, which receives image data 14 and then outputs the resultant image on the OLED display 16.

[0015]The ACL 12 includes an analysis unit 120 for analyzing characteristics of the received image data. In this specification, the term unit is configured to denote a circuit, a piece of program, or their combination. FIG. 1B illustrates a flow of the analysis unit 120 according to one embodiment of the present invention. In the embodiment, the intensity of the received image data 14 is analyzed in step 1201,...

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Abstract

A content-adaptive adjustment system and method for a light-emitting display is disclosed. An analysis unit analyzes, for example, the average data intensity / power consumption and the data distribution of the image data to be displayed. An adjustment unit then adjusts, for example, the pixel values of the image data or the drive levels of the light-emitting display according to the analyzed data distribution, such that the consumed power in the light-emitting display could be considerably reduced.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The present invention generally relates to organic light-emitting diode (OLED) display, and more particularly to adjusting the driving current of the OLED display.[0003]2. Description of the Prior Art[0004]The organic light-emitting diode (OLED) has recently received more attention and application in the field of the flat panel display, in television screens, computer displays, and portable electronic device screens. A primary benefit of the OLED over other flat panel displays is that the OLED itself emits light of different colors and therefore does not involve the backlight and color filter as required, for example, in the liquid crystal display (LCD). Further, the OLED display can be more effectively manufactured in process and in cost. Nevertheless, the significant drawback of the OLED is the limited lifetime of the organic materials prone to degradation compared to the LCD, for example.[0005]The OLED-based display ...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): G09G3/32
CPCG09G3/2007G09G3/3208G09G2360/16G09G2330/021G09G2320/0271
Inventor CHEN, SHING-CHIAHUANG, LING-HSIU
Owner HIMAX TECH LTD
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